Cockos Reaper might not have the greatest name ever, but it’s an impressive audio/MIDI Digital Audio Workstation.
It’s relatively inexpensive, $225, or $50 for non-commercial use. It runs on Windows 98/ME/NT/2k/XP/Vista/WINE, and a OS X version is on the way.
A new version, Reaper v2.45, is available.
Here’s what’s changed:

Tracks can be set to automatically record-arm when [...]

Trinity Audio Group has introduced Indamixx, a hand-held audio studio designed to let you record, edit, mix, DJ and publish songs or sound files on the go.
The Indamixx touchscreen allows hands-on fader control with group-based automation in the Ardour DAW, as well as beatmixing and pitch adjustment in Mixxx, the digital DJ application.
Indamixx ships with [...]

PCAudioLabs has introduced two new audio PCs, Solar and Lunar, to their Create product line. Both Solar and Lunar come equipped with features such as dual hard drives, dual video outputs, 8 USB ports, 2 Texas Instruments FireWire ports and 2 Gigabytes of RAM. Each system comes fully optimized and tweaked for demanding audio production.

Features:

Intel [...]

PCAudioLabs now offers the Eclipse server, an AMD-based dual processor hardcore monster system featuring 14 terabytes of storage housed in a 3U rack using Windows XP x64 software.
If you’re always running out of space for audio files, this may be what you need….as long as you’ve got an extra 14k to spare. It can [...]

Rain Recording has announced their first AMD processor-based audio workstation line, called Solstice. Solstice workstations are a new addition to Rain’s line of computers, which are built specifically for the needs of professional audio and video production.
Powered by innovative AMD Athlon 64 X2 dual-core processors, the Solstice 01 and 02 [...]

PCAudioLabs has released Impact, a computer case designed specifically for use with professional studio/music applications. The case was designed from the ground up taking into account how computers are used during the process of making music.
Features:

Modular Design: The external 5.25″ drive carriage can rotate 360 degrees, allowing impact to be set up as a rackmount [...]

Rain Recording have released the Nimbus Pro audio workstation line. The two versions, Q1 and Q2, utilize quad-core processor technology and new acoustical engineering to give the user power with near silent performance.
Description:
Nimbus Pro is built around Intel’s powerful Core2 Quad processor. Add to that up to 8GB of RAM, a Terabyte of recording space [...]

MusicXPC’s Professional S3 studio production computer is a Windows-based system specially tweaked for media production, configured from the BIOS up to handle audio tracks, effects and virtual instruments with ease.
The system features an Intel Core 2 Duo processor running at 2.4GHz with a 4MB L2 Cache on a 1066 MHz FSB. The machine comes with [...]

PCAudioLabs is now offering Windows XP Dual-Boot systems configured for audio, using swappable hard drives, with Windows XP Professional 64 and Windows Vista Ultimate 32/64.
With a Dual-Boot Vista DAW, you can still have access to the files stored on other hard drives from either version of Windows. Switching from your Windows XP applications to Windows [...]

Rain Recording has introduced the Nimbus AS1, an audio computer designed for the musician on a budget.
Starting at just $1299.95 (£749), the base model comes standard with dual-core processing, 667MHz RAM, dual SATA II hard drives and room to grow.
The scissor doors and top USB/FireWire ports provide easy access for audio peripherals and drive bays [...]